Medical power supply system

Abstract

A medical power supply system includes: a medical device including an elongated insertion section, a power receiving unit including a power receiving member and movable relative to the insertion section in a longitudinal direction of the insertion section, and a biasing unit biasing the power receiving unit toward a distal end side of the insertion section; and a guide unit including a power transmitting unit including a power transmitting member, the insertion section being inserted into the guide unit. When the insertion section is inserted into the guide unit to a predetermined amount, the power receiving unit comes in contact with the power transmitting unit with being biased by the biasing unit, and the power transmitting member and the power receiving member face each other in an axial direction of the insertion section and have a positional relation in which wireless power transmission is possible.

What is claimed is: 
     
       1. A medical power supply system comprising:
 a medical device including an elongated insertion section, a distal end portion of which is provided with an end effector, a power receiving unit that includes a power receiving member and is movable relative to the insertion section in a longitudinal direction of the insertion section, and a biasing unit that biases the power receiving unit toward a distal end side of the insertion section; and 
 a guide unit including a power transmitting unit at a proximal end side of the guide unit, the power transmitting unit including a power transmitting member connected to a power supply source, the insertion section of the medical device being inserted into the guide unit from the proximal end side of guide unit, 
 wherein, when the insertion section is inserted into the guide unit to a predetermined amount, 
 the power receiving unit comes in contact with the power transmitting unit in a state in which the power receiving unit is biased by the biasing unit, and 
 the power transmitting member and the power receiving member face each other in an axial direction of the insertion section and have a positional relation in which wireless power transmission is possible. 
 
     
     
       2. The medical power supply system according to  claim 1 , wherein the power transmitting member and the power receiving member are planar coils, and wireless power transmission is performed through electromagnetic coupling of the power transmitting member and the power receiving member. 
     
     
       3. The medical power supply system according to  claim 1 , wherein the biasing unit is a biasing member that is elastically deformable. 
     
     
       4. The medical power supply system according to  claim 1 , wherein the biasing unit biases the power receiving unit using a magnetic force. 
     
     
       5. The medical power supply system according to  claim 1 , further comprising:
 a first cover formed of a magnetic body and disposed to cover a portion of an outer surface of the power receiving unit; and 
 a second cover formed of a magnetic body and disposed to cover a portion of an outer surface of the power transmitting unit, 
 wherein, when the power receiving unit comes in contact with the power transmitting unit, the first cover and the second cover surroundings of the power receiving member and the power transmitting member. 
 
     
     
       6. The medical power supply system according to  claim 1 , wherein the power transmitting member and the power receiving member are planar electrodes, and wireless power transmission is performed through electric field coupling of the power transmitting member and the power receiving member. 
     
     
       7. The medical power supply system according to  claim 6 , further comprising:
 a first cover formed of a conductive material and disposed to cover a portion of an outer surface of the power receiving unit; and 
 a second cover formed of a conductive material and disposed to cover a portion of an outer surface of the power transmitting unit, 
 wherein, when the power receiving unit comes in contact with the power transmitting unit, the first cover and the second cover surroundings of the power receiving member and the power transmitting member. 
 
     
     
       8. The medical power supply system according to  claim 1 , further comprising a restriction unit that is provided at at least one of the power receiving unit and the power transmitting unit and restricts relative movement between the power receiving unit and the power transmitting unit in a radial direction of the insertion section in a state in which the power receiving unit comes in contact with the power transmitting unit. 
     
     
       9. The medical power supply system according to  claim 1 , wherein the power receiving unit has a through-hole through which the insertion section is inserted.